Windows users paid $20 for their TurboTax we paid $50. Was ours twice as good? No way....I had to use tech support who admitted to me that there were "problems" with the osx turbotax and apple tech support told me on the phone that they got "a lot of calls" regarding problems. It seems that if you don't know the special technique, you cannot open the program again. You need to keep the cd out of the iMac. Anyway, I am so tired of getting ripped off each year for the extra money it might be cheaper to buy the Windows simulator software for OSX so you can buy cheaper software.